HER2 Positive Breast Cancer

P=N/A, N=100, Recruiting, University of California, San Francisco | Not yet recruiting --> Recruiting

P2, N=42, Not yet recruiting, Fudan University

The newly developed aptasensor demonstrated high sensitivity and good reproducibility for HER2 detection. The aptasensor showed a wide linear range of 0.001-100 ng mL-1, a very low limit of detection (LOD) of 0.30 pg mL-1, and a limit of quantification (LOQ) of 1.0 pg mL-1, indicating its significant potential for clinical diagnostic applications.

In conclusion, this randomized clinical trial met its primary outcome. Culmerciclib plus fulvestrant is well tolerated and leads to a significant gain in PFS of pretreated HR-positive HER2-negative ABC patients.

ET+CDK4/6i use rose up to ∼50 % after 2017, reaching ∼70 % in recent years among women with good PS, but remained ∼50 % in older patients with poor PS. Broader adoption is needed, with less chemotherapy use. Survival outcomes have improved but, causality cannot be confirmed due to the observational design.

This study evidences a substantial shift towards SLNB as the primary axillary surgery following NAT during the study period. This trend emphasizes a preference for less invasive procedures, likely due to the efficacy of neoadjuvant therapy in reducing axillary lymph node involvement.

These findings demonstrate important differences in disease presentation and surgical management between age groups in Turkey, where breast cancer screening ends at age 69. The absence of screening detection in elderly patients, combined with their advanced disease presentation, highlights the need for further investigation with larger, multicenter cohorts to evaluate optimal screening strategies for women beyond age 69.

P1/2, N=768, Recruiting, Boehringer Ingelheim | N=582 --> 768 | Trial completion date: Sep 2029 --> Jan 2029 | Trial primary completion date: Sep 2029 --> Jan 2029

P1, N=138, Active, not recruiting, AstraZeneca | Trial completion date: Dec 2025 --> Jun 2026

This evolving landscape challenges the traditional use of HER2 as a diagnostic marker and underscores the need for a deeper understanding of HER2 biology. This review addresses these complexities, focusing on the emerging HER2-Low and Ultralow subtypes, and evaluates the distinct therapeutic responses across the spectrum of HER2 expression in different BC subtypes.

To overcome foundation model constraints, approaches like model distillation, weak supervision, and modular training are critically examined. Progress now depends on high-quality datasets, rigorous multi-institutional validation, and collaboration between computational scientists, clinicians, and regulators to deliver explainable, clinically actionable innovations in breast cancer.

TQB2440 showed equivalent efficacy, comparable safety, PK, and immunogenicity profiles to reference pertuzumab in the neoadjuvant treatment of patients with HER2-positive early or locally advanced breast cancer.